12863158 has 32 divisors (see below), whose sum is σ = 24323328. Its totient is φ = 4956000.

The previous prime is 12863117. The next prime is 12863173. The reversal of 12863158 is 85136821.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15141 + ... + 15967.

It is an arithmetic number, because the mean of its divisors is an integer number (760104).

Almost surely, 2^12863158 is an apocalyptic number.

12863158 is a deficient number, since it is larger than the sum of its proper divisors (11460170).

12863158 is a wasteful number, since it uses less digits than its factorization.

12863158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 948.

The product of its digits is 11520, while the sum is 34.

The square root of 12863158 is about 3586.5245015195. The cubic root of 12863158 is about 234.3055278065.

Adding to 12863158 its reverse (85136821), we get a palindrome (97999979).

It can be divided in two parts, 1286 and 3158, that added together give a palindrome (4444).

The spelling of 12863158 in words is "twelve million, eight hundred sixty-three thousand, one hundred fifty-eight".